Bitbucket code push error

I have started receiving this error from last 2 days when I pust my changes into Bitbucket for 2 of my repositories.

Error - 'https://ravikanasagra1@bitbucket.org/xxx/xxx.git/': The requested URL returned error: 403

I have tried pushing my code from Source Tree and using android studio. From both places I have received error.

when I start my android studio, from last 2 days I am getting certificate error too. Below is the error pop which I have to accept.

My team is also receiving this same behavior. If anyone encountered this error and found fix. Kindly share.